2-(2,6-Dichloro-phen-yl)-N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)acetamide.
Ray J Butcher, Aneeka Mahan, P S Nayak, B Narayana, H S Yathirajan
Index: Acta Crystallogr. Sect. E Struct. Rep. Online 69(1) , o46-o47, (2012)
Full Text: HTML
Abstract
In the title compound, C19H17Cl2N3O2, the amide group is planar and, through N-H⋯O hydrogen bonding to an adjoining mol-ecule, forms dimers of the R2(2)(10) type. As a result of steric repulsion, the amide group is rotated with respect to both the dichloro-phenyl and 2,3-dihydro-1H-pyrazol-4-yl rings, making dihedral angles of 71.63 (11) and 57.93 (10)°, respectively. The dihedral angle between the dichloro-phenyl and 2,3-dihydro-1H-pyrazol-4-yl rings is 76.60 (10)° while that between the 2,3-dihydro-1H-pyrazol-4-yl and phenyl rings is 49.29 (7)°. The crystal structure also features weak C-H⋯O inter-actions.
Related Compounds
Related Articles:
Enantioselective protonation of samarium enolates by a C2-symmetric chiral diol. Takeuchi S, et al.
[Tetrahedron Asymmetry 5(9) , 1763-80, (1994)]